                              XChartPanel)
            (org.knowm.xchart.style Styler
                                    Styler$LegendPosition
+                                   PieStyler$AnnotationType
                                    GGPlot2Theme
                                    MatlabTheme
                                    XChartTheme)

   legend (set-legend! legend)
   plot (set-plot-style! plot)
   series (set-series-style! series)))

;; TODO: Add in font as a shortcut to set all fonts not yet set.


  ([series]
   (pie-chart series {}))
  ([series
    {:keys [width height title circular theme render-style annotation-distance
            start-angle draw-all-annotations donut-thickness annotation-type]
     :or {width 640 height 500}
     :as styling}]
   {:pre [series]}
   (let [chart (PieChart. width height)]
     (doseq [[s-name num] series]
